I must degrease you must degrease he must degrease we must degrease you must degrease they must degrease
Forma con V-ing
I must be degreasing you must be degreasing he must be degreasing we must be degreasing you must be degreasing they must be degreasing
Perfecto
I must have degreased you must have degreased he must have degreased we must have degreased you must have degreased they must have degreased
Perfecto con V-ing
I must have been degreasing you must have been degreasing he must have been degreasing we must have been degreasing you must have been degreasing they must have been degreasing
Negación
Forma simple
I mustn't degrease you mustn't degrease he mustn't degrease we mustn't degrease you mustn't degrease they mustn't degrease
Forma con V-ing
I mustn't be degreasing you mustn't be degreasing he mustn't be degreasing we mustn't be degreasing you mustn't be degreasing they mustn't be degreasing
Perfecto
I mustn't have degreased you mustn't have degreased he mustn't have degreased we mustn't have degreased you mustn't have degreased they mustn't have degreased
Perfecto con V-ing
I mustn't have been degreasing you mustn't have been degreasing he mustn't have been degreasing we mustn't have been degreasing you mustn't have been degreasing they mustn't have been degreasing
Forma interrogativa
Forma simple
must I degrease? must you degrease? must he degrease? must we degrease? must you degrease? must they degrease?
Forma con V-ing
must I be degreasing? must you be degreasing? must he be degreasing? must we be degreasing? must you be degreasing? must they be degreasing?
Perfecto
must I have degreased? must you have degreased? must he have degreased? must we have degreased? must you have degreased? must they have degreased?
Perfecto con V-ing
must I have been degreasing? must you have been degreasing? must he have been degreasing? must we have been degreasing? must you have been degreasing? must they have been degreasing?
Forma interro-negativa
Forma simple
mustn't I degrease? mustn't you degrease? mustn't he degrease? mustn't we degrease? mustn't you degrease? mustn't they degrease?
Forma con V-ing
mustn't I be degreasing? mustn't you be degreasing? mustn't he be degreasing? mustn't we be degreasing? mustn't you be degreasing? mustn't they be degreasing?
Perfecto
mustn't I have degreased? mustn't you have degreased? mustn't he have degreased? mustn't we have degreased? mustn't you have degreased? mustn't they have degreased?
Perfecto con V-ing
mustn't I have been degreasing? mustn't you have been degreasing? mustn't he have been degreasing? mustn't we have been degreasing? mustn't you have been degreasing? mustn't they have been degreasing?